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the valve clearance should be set at .002 for the intake and the exhaust
On the 1994 Yamaha Breeze the valve clearance on the intake should be set at 0.006 inches. The valve clearance on the exhaust should be set at .011 inches.
Valve clearance of Volvo f12, are set using a feeler gauge on the lash adjuster.
.006" intake .007" exhaust Standard screw and locknut adjusters. Set the clearance when the engine is cold. Be sure to set each valve with cylinder at TDC. (top dead center) I suggest replacing the valve cover rubber gasket when adjustig the valves, as they do get old and can crack/leak.
They are to set @ .005 in
The manufacturer's cam card will tell you how much clearance, and whether the clearance is measured hot or cold. From the point when the #1 cylinder is at TDC you can set 1, 2, 5, and 7 intake valves and 1, 3, 4, and 8 exhaust valves. Rotate the engine one revolution and set the rest.
Take out the spark plugs and turn engine over till the timing mark is tdc in the sight glass. The sight glass is behind the generator cover which can be removed with a phillips head screwdriver. One of the pistons should be at the top when you do this, it will be the one you check first for valve clearance. Valve clearance on older models will be 10mm for intake, 15 mm for exhaust. After you set that piston roll the engine over till the other piston is at top dead center, the timing mark should be on the arrow as well. Now set the valve clearance for that cylinder. After you do this roll the engine over a couple of times and recheck valve clearance on both cylinders to make sure you got it right. That's it! There is no way to set timing on an engine that I know of other than moving the timing chain on the gears.
i was told that the decompression lever on the valve needs tob set but i don't know how. does the timing need to be set with the intake valve
Intake 0.40mm Exhaust 0.60mm cold set
The VSV is located on the intake manifold side of the emission control valve set.
Generally, over time, the compression release will get out of adjustment. Remove the overhead valve cylinder cover (the dead cylinder for twin cylinder engine) and adjust the compression release with the cylinder at TDC. Loosen the adjuster locks and set intake valve clearance to between .004in. and .006in. Adjust exhaust valve clearance to between .008in. and .010in. Takes about 3 minutes to do this!
Intake valves are set at 4 thousandths and exhaust set at 6 thousandths.